Centrifugal machine.



No. 699,32I. Patented May 6, |902.

L. HIRT.

CENTRIFUGAL MACHINE.

(Application led Jan. 17, 1902.) (No Model.)

UnirTnn STATES PATnNT Genion.

LUDWIG HIRT, OF GREVENBROICH, GERMANY.

CENTRIFUGAL MACHINE,

SP'EGJFJICATEON forming part of Letters Patent-17N o. 699,321, dated May 6, 1902.

Application filed January 17, 1902. Serial No. 90,166. (No model.)

To all whom it may concern,.-

Be it known that I, LUDWIG IIIRT, a subject of the King of Prussia, Emperor of Germany, and a resident of Grevenbroich, Rhine Province, Prussia, Germany, have invented certain newand useful Improvements in Centrifugal Machines or Separators, of which the followingis a specification.

This invention has for its object certain improvements inthat kind of centrifugal machines which are used in sugar-man ufacturing for converting masse-cuites into blocks,plates, strips, or small cubes; and the invention particularly refers to the improved construction of the wedge-shaped partitions which form part of the basket of the machines rotating drum, which basket may be inserted,with the massecuite, into said drum. It may hereafter participate in the rotating motion of said drum and may be removed from` the latter for the purpose of obtaining the sugar in one above-specified desired form. Vedge-shaped partitions are well known for the purpose mentioned. Their object is to form between two flat rings in the centrifugal basket parallel vertical walls, between which the plates, frames, or other molding-bodies are interposed to receive the masse-cuite and in which the latter is converted into the shape mentioned. The new construction of said wedgeshaped partitions is intended, to make them strong, light, and of equal weight, which is an essential quality for avoiding irregular rotation of the drum or basket; furthermore, to make them perfectly tight by soldering and to galvanize their surfaces. The said wedgeshaped partitions are arranged between rings at top and bottom and. may be made removable from or fixed to said rings.

Figure l is a perspective view of4 the two rings and of the wedge-shaped partitions between them. Those parts between the Vertical surfaces of the wedge-shaped partitions for receiving the masse-cuite are left away in this View. Fig. 2 isa longitudinal section of a wedge-shaped partition according to this invention arranged removably from the bottom ring. Fig. 3 is a plan View of the said wedge-shaped partition from top. Fig. li is a longitudinal section of a wedge-shaped partition according to this invention rigidly connected to the -bottom ring. Fig. 5 is a plan view ot' said wedge-shaped partition from below. Figs. 6, 7', S, and 9 are details. Fig. l shows in perspective View the top ringa and bottom ring d with the wedge-shaped partitions ct" between them arranged in suitable numbers for the purpose.

Referring to Figs 2 and 3, ais the top ring, and o," is the bottom ring, as usually used for forming the base and the cover for the wedgeshaped partitions and for the parts to be interposed between the said partitions.

The wedge-shaped partitions, according to Figs. 2 and 3, are bent of wrought-iron or any other suitable material to form the angular part b Z). In order to strengthenthis angular part at its point, I insert steel or other shap# ings, and by heating, pressing, and welding I strengthen this part, so-as-tobe able to sha-pe it as at o in Fig. The Shanks of the angular piece b b are combined by the plate d, which I form into a curve identical with the inner curvature of the basket or drum. The plate d before insertion is provided with the flanges d d. The oblique position of the latter must be in correspondence with the oblique position of the Shanks b b. All these plates b and CZ are provided near the top rim and the bottom rim with rivet-holes, such as f, with a countersunk part to make the rivet-heads iiush with the outersurface of the wedge-shaped partition. The latter are closed at top and bottom by the triangular pieces g g,which are made of strong sheet-iron or other suitable material, and the sides of which pieces are provided with holes 'to correspond with the holes in` the plates b and d. The holes in the triangular pieces are of such a depth so as to receivesplit rivets 7L, Fig. 8, the split receiving a steel wedge t, so that if such rivet is inserted through a hole in the plates h or d and into a deep hole of the top or bottom piece g g the hammering or pressing on the rivets outer end will cause the split part of the rivet to expand and to give a good hold to the rivet in its hole, while the head of the rivet is driven home into the counter-` sunk part of the plates b or d, so the wedgeshaped partition is formed and-soldered at its seams, so as to make it perfectly tight against any entrance of liquid, steam, orai'r. All the outer faces. of the .wedge-shaped lpartitions may be covered with zinc bythe galvanizing IOO ithis spot.

process.' Invorder to adjust these bodies upon the base-ring ct', the latter may be provided with a suitable number of set-screws or bolts k', which take into corresponding holes provided for them in thelower surface of the triangular plate g.

Identical bolts 7c may be fixed in the upper surface of the upper triangular plate -g to ltake into holes provided in the lower surface of the upper ring a. Thus the situation of the rings and of the wedge-shaped partitions is secured. In order to remove said partitions out of the drum or basket, they are provided at top with a screw-bolt l, taking into the threading of the triangular plate g, through a hole provided for that purpose in the upper ring a., said bolt having a collar m for pressing down a ring of paper or any suitable material to insure perfect tightness at Upon the upper screw-thread of theboltl a nut n is provided, forming a strap n (see Fig. 9) for screwing the upper ring and thefwedge-shaped partition together.

Figs. 4 and 5 show a wedge-shaped partition of similar construction, and in these figures identical parts have identical letters of reference, as in Figs. 2 and 3. The only difference in the Wedge-shaped partitions, ac-

cording to Figs. 4 and 5, is that these partitions are rigidly secured to the base-ring ct. This renders a solid connection between the rings, the wedge-shaped partitions, and the frames or plates between said bodies, so that the entire interior can be removed out of the drum or basket. For this purpose the Wedgeshaped partition is longitudinally traversed by a strong bolt o, which at top is provided f with identical means, as the bolt Z in Fig. 2.

At bottom it traverses by suitable holes the triangular plate g andthe base-ring d and is secured to the former by a nut p, Fig. 6,

, ,and a check-nut q, Fig. 7, which latter is cone-shaped and secures the bolt to the lower or base ring a'.

In order to take apart the basket if removed from the drum, I loosen the nuts n of the wedge-shaped partitions, rigidly connected to the base-ring, and I then lift the other wedgeshaped partitions with the upper ring, so I am thus enabled to remove the individual plates, frames, or forms with the sugar.

I claim- 1. In centrifugal machines to be used in the manufacture of sugar a wedge-shaped partition to be inserted between a top and a bottom iiathorizontal ring, Within the drum or basket of the machine, said Wedge -shaped partition consisting of angular bent sides b b with strengthened corner-point, of a curved back side Cl and of triangular pieces g g at top and bottom, the two latter being riveted to the Asides b b and d.

2. In centrifugal machines a wedge-shaped partition to be inserted between a top and a bottom fiat horizontal ring within the drum or basket of said centrifugal machine consisting of angular bent sides b b, of a curved back side d, of triangular pieces g g at top and bottom, the sides of said triangular pieces and the plates or sides h b and back side d being provided with corresponding holes, for split rivets to pass into these holes, to expand within the holes by wedges inserted into the split and to receive countersunk rivet-heads when said rivets are driven home.

3. In centrifugal machines a Wedge-shaped partition, consisting of angular bent sides, a curved back side, top and bottom triangular pieces, said triangular pieces being secured to the plates Z9 and d by being riveted together by expanding split rivets with countersunk heads, the top and bottom pieces being provided with holes and set-screws to render possible the proper placing of the wedge-shaped partition between the flat horizontal rings at top and bottom, the upper triangular piece being provided with a' bolt and strap-shaped nut.

4. In centrifugal machines a wedge-shaped partition, consisting of angular bent sides, a curved back side, top and bottom triangular pieces, all these parts riveted together by eX- panding split rivets with countersunk heads, a bolt traversing the top ring, the upper triangular piece, the wedge-shaped partition, the lower triangular piece and the lower fiat horizontal ring, to which said bolt is rigidly connected.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 20th day of December, 1901.

LUDWIG IIIRT. lVtnesses:

HERNANDO DE Soro, CARL KNooP. 

